阅读说明：本技术 一种滚珠环面蜗杆减速机 (Ball ring surface worm speed reducer ) 是由 张德明 于 2020-06-19 设计创作，主要内容包括：本发明提供一种滚珠环面蜗杆减速机,包括：包括机壳、涡轮和蜗杆,所述机壳内部一侧套设有蜗杆,蜗杆在机壳内部自由旋转,所述蜗杆一侧设置有涡轮,所述涡轮套设在机壳内部,在机壳内部自由转动。本发明提供的一种滚珠环面蜗杆减速机,滚珠、蜗杆和涡轮都采用高强度耐磨材质钢,传动强度和刚性比传统减速机更大,采用滚珠结构,滚动摩擦传动方式,提高了机械效率,采用滚珠结构,能承受更大的输入转速,使用场合更广泛,采用滚珠结构,同时也缩小了减速机的体积。(The invention provides a ball ring surface worm speed reducer, comprising: including casing, turbine and worm, the inside one side cover of casing is equipped with the worm, and the worm freely rotates in the casing is inside, worm one side is provided with the turbine, the turbine cover is established inside the casing, at the inside free rotation of casing. According to the ball ring surface worm speed reducer, the balls, the worm and the worm wheel are all made of high-strength wear-resistant steel, the transmission strength and the rigidity are higher than those of a traditional speed reducer, the ball structure and the rolling friction transmission mode are adopted, the mechanical efficiency is improved, the ball structure can bear higher input rotating speed, the use occasion is wider, the ball structure is adopted, and the size of the speed reducer is reduced.)

1. A ball ring surface worm speed reducer is characterized in that: the worm-gear type squirrel-cage device comprises a shell (1), a turbine (3) and a worm (2), wherein the worm (2) is sleeved on one side inside the shell (1), the worm (2) freely rotates inside the shell (1), a cavity is arranged inside the worm (2), a key groove is formed in the front end of the cavity, thread teeth are arranged on the outer surface of the middle section of the worm (2), the middle section of the worm (2) is of a single-blade hyperboloid structure, extension holes which are communicated with the cavity are further formed in two ends of the middle section of the worm (2), a squirrel cage (4) is arranged inside the cavity, the squirrel cage (4) is fixed at the tail end of the worm (2) through screws, holes are formed in the squirrel cage (4), the extension holes are communicated with the holes of the squirrel cage (4) to form a loop, a plurality of balls (16) are arranged on the thread teeth in the middle section of the worm (2), and a plurality of balls (16) are also arranged inside the squirrel cage (4), worm (2) one side is provided with turbine (3), turbine (3) cover is established inside casing (1), at inside free rotation of casing (1).

2. The ball-and-ring worm reducer of claim 1, wherein: the curved surface structure of the middle section of the worm (2) is matched with the curved surface of the side wall of the turbine (3).

3. The ball-and-ring worm reducer of claim 1, wherein: the upper end face of the casing (1) and the middle section of the worm (2) are provided with grooves sunken towards the cavity direction, and the curved surface structure of the middle section of the worm (2) is matched with the curved surface of the grooves.

4. The ball-and-ring worm reducer of claim 1, wherein: the two ends of the worm (2) are respectively provided with a cover (5) and a rear cover (6), a first oil seal (7) and a first bearing (8) are arranged between the worm (2) and the cover (5), and a second bearing (9) is arranged between the worm (2) and the rear cover (6).

5. The ball-and-ring worm reducer of claim 1, wherein: the two ends of the turbine (3) are respectively a shell (1) and a side cover (10), a second oil seal (11) and a third bearing (12) are arranged between the turbine (3) and the shell (1), and a third oil seal (13) and a fourth bearing (14) are arranged between the turbine (3) and the side cover (10).

6. The ball-and-ring worm reducer of claim 1, wherein: and a plug (15) is arranged at the position on the surface of the shell (1) corresponding to the worm (2).

7. The ball-and-ring worm reducer of claim 1, wherein: the holes of the squirrel cage (4) are S-shaped holes or U-shaped holes.

Technical Field

The invention relates to the field of speed reducers, in particular to a ball ring surface worm speed reducer.

Background

The reducer is an independent part consisting of gear drive, worm drive and gear-worm drive which are enclosed in a rigid casing and is commonly used as a speed reduction transmission device between a prime mover and a working machine. The function of matching the rotation speed and transmitting the torque between the prime mover and the working machine or the actuating mechanism is very extensive in modern machinery. The speed reducer is generally used for low-speed and large-torque transmission equipment, and the purpose of reducing speed is achieved by meshing a motor, an internal combustion engine or other high-speed running power with a large gear on an output shaft through a gear with a small number of teeth on an input shaft of the speed reducer.

The speed reducer in the prior art has the problems of insufficient transmission strength and rigidity, low transmission efficiency, overlarge equipment and the like.

Therefore, the prior art has yet to be developed.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide a ball-and-ring worm reducer that solves the problems of the prior art and has certain advantages.

To achieve the above and other related objects, the present invention provides a ball-ring worm reducer, comprising: casing, turbine and worm, the inside one side cover of casing is equipped with the worm, and the worm freely rotates in the casing is inside, the inside cavity that is equipped with of worm, the cavity front end is equipped with the keyway, worm middle section surface is equipped with the thread tooth, and the worm middle section is single hyperboloid structure, the middle part both ends of worm still are equipped with the hole of extending that link up each other with the cavity, the inside squirrel cage that is equipped with of cavity, the squirrel cage passes through the fix with screw the end of worm, the inside of squirrel cage is equipped with the hole, and the hole that extends hole and squirrel cage is mutually linked together, forms the return circuit, be equipped with a plurality of balls on the thread tooth in worm middle section, the inside a plurality of balls that also is equipped with of squirrel cage, worm one side is provided with the turbine, the turbine cover is established inside the casing, at the inside free rotation of casing.

In an embodiment of the present invention, the curved surface structure of the middle section of the worm is matched with the curved surface of the side wall of the turbine.

In an embodiment of the present invention, a concave groove recessed toward the cavity direction is disposed at a position of the upper end surface of the casing corresponding to the middle section of the worm, and a curved surface structure of the middle section of the worm is matched with a curved surface of the concave groove.

In an embodiment of the present invention, a cover and a rear cover are respectively disposed at two ends of the worm, a first oil seal and a first bearing are disposed between the worm and the cover, and a second bearing is disposed between the worm and the rear cover.

In an embodiment of the present invention, two ends of the turbine are respectively a casing and a side cover, a second oil seal and a third bearing are disposed between the turbine and the casing, and a third oil seal and a fourth bearing are disposed between the turbine and the side cover.

In an embodiment of the present invention, a plug is disposed on a surface of the casing corresponding to the worm.

In an embodiment of the present invention, the holes of the squirrel cage are S-shaped holes or U-shaped holes.

As described above, the ball-ring worm reducer according to the present invention has the following advantageous effects: according to the ball ring surface worm speed reducer, the balls, the worm and the worm wheel are all made of high-strength wear-resistant steel, the transmission strength and the rigidity are higher than those of a traditional speed reducer, the ball structure and the rolling friction transmission mode are adopted, the mechanical efficiency is improved, the ball structure can bear higher input rotating speed, the use occasion is wider, the ball structure is adopted, and the size of the speed reducer is reduced.

Drawings

Fig. 1 is a perspective view of a ball-ring worm reducer according to an embodiment of the present invention.

Fig. 2 is a rear view schematically illustrating a ball-ring worm reducer according to an embodiment of the present invention.

Figure 3 is a schematic side view of a ball-and-ring worm reducer according to an embodiment of the present invention.

Figure 4 shows a cross-sectional view of a plane a-a of a ball-and-ring worm reducer as disclosed in an embodiment of the present invention.

Figure 5 shows a cross-sectional view of the B-B plane of a ball-and-ring worm reducer disclosed in an embodiment of the present invention.

Figure 6 shows a cross-sectional view of the plane C-C of a ball-and-ring worm reducer as disclosed in an embodiment of the present invention.

Description of the element reference numerals

1 case

2 Worm

3 turbine

4 mouse cage

5 machine cover

6 rear cover

7 first oil seal

8 first bearing

9 second bearing

10 side cover

11 second oil seal

12 third bearing

13 third oil seal

14 fourth bearing

15 plug

16 ball

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1 to 6. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

Referring to fig. 1 to 6, the present invention provides a ball-ring worm reducer, including: the worm gear mechanism comprises a machine shell 1, a worm wheel 3 and a worm 2, wherein the worm 2 is sleeved on one side in the machine shell 1, the worm 2 freely rotates in the machine shell 1, a cavity is arranged in the worm 2, a key groove is arranged at the front end of the cavity, thread teeth are arranged on the outer surface of the middle section of the worm 2, the middle section of the worm 2 is of a single-blade hyperboloid structure, the two ends of the middle part of the worm 2 are also provided with extending holes which are communicated with the cavity, a squirrel cage 4 is arranged in the cavity, the squirrel cage 4 is fixed at the tail end of the worm 2 through a screw, a hole is arranged in the squirrel cage 4, the extending hole is communicated with the hole of the squirrel cage 4 to form a loop, a plurality of balls 16 are arranged on the thread teeth at the middle section of the worm 2, a plurality of balls 16 are also arranged inside the squirrel cage 4, one side of the worm 2 is provided with a turbine 3, the turbine 3 is sleeved inside the casing 1 and freely rotates inside the casing 1.

Specifically, the curved surface structure of the middle section of the worm 2 is matched with the curved surface of the side wall of the turbine 3. Because the middle part of the worm 2 is in contact with the upper end surface of the worm wheel 3 by adopting a single-blade hyperboloid structure, the repeated surface between the ball and the worm wheel (3) and the worm (2) can be increased, and the load is increased.

Specifically, a groove which is sunken towards the cavity direction is arranged at the position, corresponding to the middle section of the worm 2, of the upper end surface of the casing 1, and the curved surface structure of the middle section of the worm 2 is matched with the curved surface of the groove. The distance between the middle section of the worm 2 and the groove on the upper end surface of the casing 1 is basically the same as the diameter of the ball 16, the inside of the casing 1 is a smooth surface, the ball 16 is a smooth surface, and the ball 16 can slide on the thread teeth between the casing 1 and the worm 2 at a high speed.

Specifically, the both ends of worm 2 are provided with cover 5 and hou gai 6 respectively, be equipped with first oil blanket 7 and first bearing 8 between worm 2 and the cover 5, be equipped with second bearing 9 between worm 2 and the hou gai 6.

Specifically, the both ends of turbine 3 are casing 1 and side cap 10 respectively, be equipped with second oil blanket 11 and third bearing 12 between turbine 3 and the casing 1, be equipped with third oil blanket 13 and fourth bearing 14 between turbine 3 and the side cap 10.

Specifically, a plug 15 is arranged on the surface of the casing 1 corresponding to the worm 2.

Wherein, the ball, the worm and the worm wheel are all made of high-strength steel.

Specifically, the holes of the squirrel cage 4 are S-shaped holes or U-shaped holes.

The holes of the squirrel cage 4 are not limited to S-shaped holes or U-shaped holes, and any squirrel cage that can realize the functions of the squirrel cage 4 of the present invention falls within the scope of the present invention.

When the invention is installed, a third bearing 12 and a second oil seal 11 are arranged at one end of a worm wheel 3, a fourth bearing 14 and a third oil seal 13 are arranged in a side cover 10, the arranged side cover 10 and the worm wheel 3 are arranged in a machine shell 1, the side cover 10 and the machine shell 1 are fixed by screws, a worm 2 is arranged in the machine shell 1, a first bearing 8 and a first oil seal 7 are arranged at the front end of the worm 2, a second bearing 9 is arranged at the rear end of the worm 2, then balls are put into a cavity in the worm 2, the specific number of the balls is a fixed number calculated in advance, when the balls are filled, a cavity hole at the rear end of the worm 2 is blocked to prevent the balls from falling off, the worm 2 is rotated by hands in a counterclockwise direction while the balls are arranged, a squirrel cage 4 is arranged in the cavity after the teeth on the outer wall of the worm 2 and the extending hole in the worm 2 are filled with the balls, and is fixed at the rear end of the worm 2 by screws and sealants, at this time, the rear cover 6 is screwed tightly, and the plug 15 is installed to complete the installation.

During specific implementation, the worm 2 is connected with an input shaft, the input shaft drives the worm 2 to rotate, and when the worm 2 rotates, the balls 16 roll between a loop formed by the worm 2 and the squirrel cage 4 and drive the turbine 3 to rotate.

In summary, according to the ball-ring worm speed reducer provided by the invention, the balls, the worm and the worm wheel are all made of high-strength wear-resistant steel, the transmission strength and rigidity are higher than those of the traditional speed reducer, the ball structure and the rolling friction transmission mode are adopted, the mechanical efficiency is improved, the ball structure is adopted, the larger input rotating speed can be borne, the use occasions are wider, the ball structure is adopted, the size of the speed reducer is reduced, the cross sections of the middle section of the worm and the upper end face of the corresponding shell are both arc-shaped, and the structure can increase the repeated surface of the balls and the worm wheel and worm, so that the load is increased.

Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.